diff --git a/libc/kernel/uapi/linux/aspeed-p2a-ctrl.h b/libc/kernel/uapi/linux/aspeed-p2a-ctrl.h
new file mode 100644
index 0000000..94e5132
--- /dev/null
+++ b/libc/kernel/uapi/linux/aspeed-p2a-ctrl.h
@@ -0,0 +1,33 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_ASPEED_P2A_CTRL_H
+#define _UAPI_LINUX_ASPEED_P2A_CTRL_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#define ASPEED_P2A_CTRL_READ_ONLY 0
+#define ASPEED_P2A_CTRL_READWRITE 1
+struct aspeed_p2a_ctrl_mapping {
+  __u64 addr;
+  __u32 length;
+  __u32 flags;
+};
+#define __ASPEED_P2A_CTRL_IOCTL_MAGIC 0xb3
+#define ASPEED_P2A_CTRL_IOCTL_SET_WINDOW _IOW(__ASPEED_P2A_CTRL_IOCTL_MAGIC, 0x00, struct aspeed_p2a_ctrl_mapping)
+#define ASPEED_P2A_CTRL_IOCTL_GET_MEMORY_CONFIG _IOWR(__ASPEED_P2A_CTRL_IOCTL_MAGIC, 0x01, struct aspeed_p2a_ctrl_mapping)
+#endif